Similar stuff has been reported and has usually been solved by rescanning the arrays using updated scanner files from Illumina. If you can, I would like to see an example array (both Red and Green channels, so 2 IDAT files) Best, Kasper On Thu, Jun 16, 2016 at 1:56 PM, mcastrod [bioc] <noreply@bioconductor.org> wrote: > Activity on a post you are following on support.bioconductor.org > > User mcastrod <https: support.bioconductor.org="" u="" 10187=""/> wrote Question: > error using EPIC early access version arrays with minfi > <https: support.bioconductor.org="" p="" 83932=""/>: > > Dear all, > > We are having some problems with the analysis of some EPIC methylation > arrays (early access version) with minfi package. These arrays contains > less cpgs than the current arrays so the annotation files are different. > > When we tried to load the arrays with read.metharray function we get the > error: > > RGChannelSet (storageMode: lockedEnvironment) > assayData: 1032279 features, 1 samples > element names: Green, Red > An object of class 'AnnotatedDataFrame': none > Annotation > array: Unknown > annotation: XX > > We tried to create a new annotation object with the illumina bpm file and > modify the read.metharray function but we obtained several incompatibility > errors with the new annotation. Anyone knows how to create and attach the > annotation required by minfi functions or how to deal with this kind of > epic arrays? > > Thank you very much. > > > > ------------------------------ > > Post tags: epic, minfi, read.metharray, software error > > You may reply via email or visit error using EPIC early access version arrays with minfi >